Research on OSG control of induction motor drives for electric vehicles

Since the space vector pulse width modulation (SVPWM) control was proposed, the control methods of induction motor are more and more complicated. Thus, simple and valid control algorithms are always required. However, there are several uncertain factors in control systems of induction motor drives, such as plant parameter variations, which make it difficult for the design of controllers. To improve the performances of the drive system, this paper proposes a novel controller of one-step-guess (OSG) algorithm whose parameter can self-tune considering varieties in plant parameters under different conditions to control induction motor drives. The OSG controller is not only designed simply but also implemented validly. The results of simulations show that the proposed OSG controller has high performance for induction motor drives system.